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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkMath.h"
#include "itkTestingMacros.h"
int itkTIFFImageIOTest2( int argc, char* argv[] )
{
if( argc != 2 )
{
std::cerr << "Usage: " << argv[0] << " outputFilename" << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef unsigned char PixelType;
typedef itk::Image< PixelType, Dimension > ImageType;
ImageType::Pointer image = ImageType::New();
ImageType::RegionType region;
ImageType::IndexType start;
ImageType::SizeType size;
size[0] = 157;
size[1] = 129;
start[0] = 0;
start[1] = 0;
region.SetSize( size );
region.SetIndex( start );
image->SetRegions( region );
image->Allocate( true ); // initialize buffer to zero
ImageType::SpacingType spacing;
spacing[0] = 3.1415;
spacing[1] = 6.2830;
image->SetSpacing( spacing );
typedef itk::ImageFileWriter< ImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetFileName( argv[1] );
writer->SetInput( image );
TRY_EXPECT_NO_EXCEPTION( writer->Update() );
typedef itk::ImageFileReader< ImageType > ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
TRY_EXPECT_NO_EXCEPTION( reader->Update() );
const ImageType * readImage = reader->GetOutput();
ImageType::SpacingType readSpacing = readImage->GetSpacing();
const double tolerance = 1e-5;
for( unsigned int i = 0; i < ImageType::SpacingType::Dimension; ++i )
{
if( !itk::Math::FloatAlmostEqual( spacing[i], readSpacing[i], 10, tolerance ) )
{
std::cerr << "Test failed!" << std::endl;
std::cerr << "Error while testing spacing at index: " << i << std::endl;
std::cerr << "Expected: " << spacing[i] << ", but got: " << readSpacing[i] << std::endl;
return EXIT_FAILURE;
}
}
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
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